Struct ContainerWriter 

pub struct ContainerWriter { /* private fields */ }

👎Deprecated since 0.2.0:

superseded by the .verit file: use FileBuilder (in memory) or FileWriter (on disk). A .vertc container carries no schema section, so it cannot be read without an out-of-band registry. Removed in 0.3.0 — see ADR-0002.

Build a .vertc container from a sequence of Veritate messages. The output is a self-contained Vec<u8> you write to a file (and later mmap).

let mut w = ContainerWriter::new();
w.add(b"\x00message-a");
w.add(b"\x01message-b");
let file = w.finish();

let c = Container::parse(&file).unwrap();
assert_eq!(c.len(), 2);
assert_eq!(c.get(1).unwrap(), b"\x01message-b");

Implementations

impl ContainerWriter

pub fn new() -> ContainerWriter

pub fn add(&mut self, message: &[u8]) -> &mut ContainerWriter

Append one message’s bytes as the next record. Records are stored in the order added and read back by that index.

pub fn len(&self) -> usize

Number of records added so far.

pub fn is_empty(&self) -> bool

pub fn finish(self) -> Vec<u8>

Finish the container and return its bytes: pad to the index alignment, append the index, then patch the header.

Trait Implementations

impl Default for ContainerWriter

fn default() -> ContainerWriter

Returns the “default value” for a type.